Mechanical pencil



FIG. 1 is a perspective view of the inventive mechanical pencil;

FIG. 2 is a front view of the mechanical pencil;

FIG. 3 is a right-side view of the mechanical pencil;

FIG. 4 is a rear view of the mechanical pencil;

FIG. 5 is a plan view of the mechanical pencil;

FIG. 6 is a bottom view of the mechanical pencil; and,

FIG. 7 is a sectional view of a shaft of the mechanical pencil.

The ornamental design for a mechanical pencil, as shown and described.